Machine for forming packing-cups.



C. SWAN. MACHINE .TOR FORMING PACKING CUPS.

APPLICATION FILED DBO. 3, 1906. v

Patented Sept. 15,

m f 5 7 7 m z z z @l 4 CHARLES swAN,or coRRnPENNsYLvANIA.'

MACHINE FCR FORMING PACKING-CUPS.

Specification of Letters Patent. A

Patented Sept. 15, 1908.

Applicata@ mea :December 190e. serial No. 346,005.,

To all whom it may concern:

- Be it known that I, CHARLES SWAN, a citizen of the United States, residing at Corry7 in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Machines for Forming'Packlng-Cups, of which vthe following is a specification.

This invention relates to machines for forming packing cups'and consists in certain l1m rovements in the construction thereof as Wil be hereinafter fully described and pointed out in the claims.

The usual method heretofore employed for formino such cu s has been to shape the moist leather o whichl they Y are vusually formed in molds or dies usuallyformecl of wood, and vpermitting theV cupV to remain in this position until dry. The edges of the cup were then trimmed and surplus material cut off of the peripheral wall and if desired the hole was t en punched in the bottom of the cup. t

With my machine, the material from which the cup is formed is initially clamped and the `cu formed.. The material forming the perip eral wall of the cup is then compressed .andan edge is formed on the cup in this operation so as to obviate the necessity of afterwards otherwise iinishing'thecu This compression also adds to the dura ility of \the cu by giving it greater solidity.

Int 1e preferred construction of my machine, means arey provided for punching the bottom of the cup in the same operation.

The machine is illustrated in the accompanying drawings as follows: Figure 1 shows a section on the line 1-1 in Fig. 2. Fig.` 2 shows a front elevation of the machine. Fig.l 3, a section of a cup formed by the machine.

1 marks 4the base of the machine. provided with the central opening 2 which'is enlarged at the top forming a shoulder 3. The female die 4 is arranged 1n the opening 2 near the top of the die and rests on the shoulder 3. This is provided with the annular flange 5 near the bottom andy with a centeringllange 6 around its upper end. A movable base 7 is arranged within the ilange 5 and is provided with the shoulder 8, which is adapted to engage the shoulder 5 and limit the downward movement of the movable base 7. This movable base preferably also forms the female punching die having an This is' opening through which the material punched fromthe bottom of the cup is passed. A

A spring 14 throws the outer end of said lever downwardly, thus moving the sleeve 9 upwardly to a position below the female die 4, so that normally the top end of the movable base 7 is near the lupper end of the female die. The groove 10 is cut out as shown in dotted lines in Fig. 1 to permit of the movement ofthe fork 12. The leather from which the cup 15 (see Fig. 3) is Iformed is initially cut into disk shaped piecesand is placed within the flange 6 of the female die.

The upper frame of the machine is supported on three rods, two rods 16 at each side of the machine and a rod 17 at the back. These rods are secured to the base by being passed through it and having the nuts 18-18 arranged above and below the flangeon the base, thus securing the rods. A top plate 19 isl similarly secured to the rods by means of the 'nuts 20--20. A toggle lever 21 is pivotally secured tothe top plate by means of the eye bolt 22. The eye bolt is adjustably secured to the plate by means of the nutsv 23-23 one above and one below the top plate. The toggle lever is ivotally secured to the head 24. The shan 25of the male die 26 is Vsecured in this head by means of the set screw 27. The rod 28 extends from the head through a guide late 29 and through the Ato plate 19. lT e guide plate 29' is secure in place on the rods forming the frame by means of set screws 30. The outer end of the guide plate is severed and a bolt 31 is paissedthrough the end of the plate so that wear on the lguide plate may be taken up.v A lever'plate 32 is secured to the rods formi the frame by means of the set screws 33. T is late has a forwardly extending arm 34 an the rod 28-extends through this arm also. A lever 35 is ivoted on the front end of this arm and a ink 36 connects this lever with the toggle lever 21. This linkA is of such length that as the toggle lever .approaches alinement, the pivotal connections between the link 36 and the toggle lever 21, ,the link and the lever 35 andbe- 60 45 within the sleeve. The

same between the lower end of the Nm alinement so that 'tremendous tween the 'lever 35 and arm 34 areapprogri- 4mately -in alinement, so thatv tremendous power may be delivered.

It will be noted that on the downward stroke of the male die, it contacts the disk` centered by the iiange 6 and clam s the 'e and the movable. base 7. The movablev base" recedes before the male'v die, its movement being opposed by thes rin 14. When it reaches a position with t e s oulder 8.on the shoulder 5, the to gle lever` is a proximately in alinement. T e peri hera wall of the cup will then be dispose between the walls 'of the female and male dies with the bottom ofthe cu clamped between the base of the die and t e male die. I prefer to compress the peri heral wall of the cup and in so doing, formt e edge'of the cup. As before stated, this obviates the trimming of the edge of the cu and adds to the material in the wall. o accom lish this I provide the compressing die 37 w 'ch is slidingly lmounted on the male die 26. Toggle levers 38 are connected with this comressing die by means of the pins 39. These evers are secured to the eye bolts 40 which 'extends through the top plate of the machine. They are adjustably secured by means 'of thenuts 41. A forked lever 4,2: having its arms 4pivotally secured toA the ends of the lever plate 32 is connected by means of the link 44 with the toggle Fever. 38. After the cup has been brought tothe position heretofore'described by the male die, the lever 42 is. actuated by meansof the con? necting handle 43. It will be noted that in this 4instance also, the link 42 is of such length that as the toggle leverl 38 approaches alinement, the pivotal connection between the link 44 and the toggle lever, the link 44 and the lever 42,4 and the lever .42 and the plate 32v are also in a position approximately ower can be delivered. The peripheral wa s of the cupis it will be noted, are confined by the wa of the female `and male dies and areclamped at the bottom by means ofthe male die on the movable bottom. While in' this position and so coniined, the walls ofthe cup -are compressed by the compressing die 37 under the action of the levers just described. This not onl com resses the material forming the wa s of t e cup, but it also completely forms the edges of thel cup so` that no subsequent operation is required.,l `These cups are-ordinarily perforated at the bottom and I prefer to dofthis in the same o' eration. To accomplish this, I form the. ma e die in the form of a sleeve and arrangethe punch unch is connected with the compressing die 37 by means of a pin 46. This in extends through a slot47 -in thev male die.v As Vthe compressing 'ing adapted to confine t e p.

die is vmoved downwardly by the lever here-l of the cup betweenthem tofore described, the unch is also moved with relation to the ma e die so that with the initial movement of the compressing die 37,. 'a hole is punched in the bottom of the cup.

It will be noted that this work is completed before the compressing die-is brought into position to require a given amount of pressure for its operation. In other words, these two instrumentalities operate successivel so that the power for each may be rea `y supplied in a hand operating machine.

ith most materials from which cups are formed, it is desirable`to heat the forming die during.- the operation. To accomplish this I form a cavity 48 in the walls ofthe female die and connect this cavity by means of thepipe 49' with the steam su ply or other heate fluid. The depth of the peripheral walls of the cup may be varied by adjusting the I bolts 40; this may be accomplishedy by the nuts 41.

What I claim as new is: j

In a machine for forming packing cups, the combination with a female forming die and a male die, said dies being arranged to clam the bottom of the cup and confine the perip eral .walls of the cup between them; of a-compression andA edge forming die arranged to enter betweenfthe male `and femalev dies'to compress the peripheral wall of the cup and form the efdges thereof; and devices actuating said dies to clamp the bottomof the cuip and'compress the peripheral walls thereo y 2. In a machine for forming packing cups, the -combination of a female die having a yielding bottom therein anda m-ale die, said dies being arranged dto clamp the bottom of the cu and confine the Walls thereof between t em; of a'compression and edge forming d ie arranged to enter between the dies to compress the 'peripheral wall of the cup and form-the edges thereof and devices for actuating s'aid dies.

3. In a machine for forming packing cups,

the combination of a female forming die hav- A ing a centering ring arranged With relation to said die; a male ydie arranged to enter the female die and carry with it. the mat'erial centered by the centering ring, said dies bein adapted to clamp the bottom of the cup an to confine the peripheral walls ofthe cup be- 'I tween them; and a compression and edge forming` die arranged to enterbetween the diesand com ress lthe eripheral walls ofthe `clamped an confined cup and. form-the edges thereof. Y

4. In a machine for forming packing cups,

Athe combination of a female forming die havmg a centering ring` arranged with relationv to said die; a male die'arranged to enter the' female "die and carry with it the material centered by the centerin /ringfsaid diesbetom to clamp the bottom of the cup between said yielding bottom and'said ma die and to confine the eripheral walls ofthe cu between the wafis of the female die an the walls of the male die; a compressionl and edge forming die arranged to enter between the female and male die to compress' the peripheral walls of the cup and form the edges thereof.

6. In a machine for forming packing cu s, the combination with a female forming ie and a male die, said dies being arranged to confine the peripheral Walls of the cu between them; of a compression and edge orming cup arranged to enter between the dies to compress the peripheral walls of the cup and form the edges thereof ;'a punch ada ted to perforate the bottom of thecup whi e so engaged by the walls ofthe dies; and devices for actuating said dies| and punch.

7. In a machine for formin packing cups,

the combination with a fema e forming die;

a sleeve shaped male die, said dies being arranged to confine the peripheral walls of the cup between them; a punch mountedwithin the male die; a compressing die -slldingly mounted onthe outer surface of the male die and ada ted to enter between the female andl male edges of the cup; a connection between `the compressing die and the punch; and means for actuating said dies.

8. In a machine for forming packing cups; the combination with a female diehaving a yielding bottom therein, said yielding bottom having `a positive stop and forming the female diefor a punch; a male die ada ted to enter 'the female 'die and forming with the yielding bottom a clamp for holding the material and arranged to confine between its walls` and the walls of the female die the peripheral walls of the cup; a punch arranged within the male die; a compressing die arranged without the male die; and devices for actuating -the punch and said dies.

9. In a machine for forming packing cups,

the combination with a female die havlng a yielding' bottom therein, said ielding bottom-having a positive stop andy forming the female die for a punch; a male die ada ted to enter the female die and forming with the yielding bottom a clamp for holding the ma- Y* terial and arrangedto confine between its walls andthe walls of the .female die the peies to compress and form theripheral walls of the cup; a vpunch arranged within the male die; a compressing die arranged without the male die; a connection between the punch and the compressing die whereby the punch is actuated with the compressing die; and devices for actuating said dies.

10. In a machine for forming packing cups, the'combination with a female die; a male die adapted to enter said female diecarrying with it the material forming the cup and confining the peripheral Walls thereof between the walls of said dies; a mechanism for actuating said male die 5 a com ressing die for entering between the walls ofthe female and male dies for compressing edgewise and forming the edges of the cup; anda se arate mechanism for actuating sald male an compressing dies.

1 1. In a machine for forming packing cups, the combination of a female die; a'male dieadapted to enter said female die and to con fine the walls of the cup between the walls of said dies; a toggle lever mechanism for actuating one of said dies; afcompressing die adapted to enter between the walls .of said dies and compress edgewise and form -the edges of the cup and mechanism for actuating said compressing die.

the combination of afemale die; a male die 12. In a machine for forming packing cups, V

adapted to enter saidxfemale die and to cons fine the walls of the cup between 4the wallsof said dies; a toggle lever mechanism for actuating one of said4 dies; a compressing die adapted to enter between the walls of said dies and compress and formy the edges of the cup ;jr` and a toggle lever for actuating said compressing die. l

13. In a machine for forming packing cups, the combination with a female die; a male l die adapted to enter said female die and confine the material forming the walls of the cup between the walls of said dies; mechanism for actuating said dies; a punch carried within said male die; a compressing die mounted on the outside of Said male die; a connection between said punch and said compressing die; and a toggle lever for actuating said compressing die. i

14. In a machine for formingpacking cups, the combination with a female die; a male die, said dies being arrangedvto confine the peripheral walls ofthe cup between them; a compression die arranged to enter between the w llls of said dies and compress and form the edges of the cup; devices for actuating lsaid compressing die; and means for adjusting said devices whereby the width of the peripheral walls of the cup may be varied.v

. 15. In a machine for forming packing cips,

the peripheral vwalls of the cup between them; a compressing die for ente'rlng Vbetween the walls of said female and male dies for com- In testimony whereof I have hereunto set v f pressing and 'forming the edges of said cup; my hand in the'presence of two subscribing a toggle lever for actuating said compressing Witnesses. l y

die; and means for adjusting said toggle lever CHARLES SWAN. 5 to vary the action of said toggle lever on said Witnesses:

die to vary the width ofthe peripheral Walls C. D. HIGBY, of the cup. BEssIE F. PARKER.- 

